It can pretty dang cold up here in MI.....0....-10......-17. So a few times a winter I find myself trying to clean my still cold windshield with wiper fluid only to have it haze over in a nice frosty slush. I'm wondering if any other Northerners have a preferred brand or concoction to resist the coldest of cold days and provide a clear view? I've read a few online reviews about Prestone or Rain-x brands and the homemade cocktails from alcohol, dish soap, and regular wiper fluid. Anyone have experience or reviews of a solid solution?